Self-measuring pump.



PATENTBD DEC. a, 1907.

C. S. JONES.

SELF MEASURING PUMP.

APPLIUATION FILED NOV. 5. 1906.

lnvenl'oz p rrn eta iits CHARLES S. JONES, OF MARION, IN DIANA.

snrr-imasonme in Specification. of Letters Eatezit.

Patented a a, 1907.

. Application filed members. 1906. assas inate. i

, tion is to provide a pumping device of very simple construction which may be readily attached to a tank or other container, and which may be accurately adjusted for the purpose of indicatin or registering the exact quantity of liquid delivered.

A further object of the invention is to provide a device of this class in which the indi eating or registering mechanism may be quickly adjusted for the purpose of indicat ing difierent quantities delivered, as for instance, ints or quarts or gallons.

A still further object of the invention is to provide an improved means for securing the pump in place within the tank or other oil container. i e

A still further object of the invention is to provide an improved form of delivery nozzle which will prevent waste of the liquid by dripping.

With these and other objects-in view, as will more fully hereinafter appear, the invention consists in certain novel features of construction and arrangement of parts, here inafter fully described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size andfminor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention. In the accompanying drawings:l igure l is anelevation, partly in section, of a measuring pump constructed in accordance with the invention. Fig. 2 is a similar view taken at a right angle to Fig. 1. Fig. 3 is a detail view, partly in section, of the delivery nozzle. Fig 4 is a plan view of one of the pump supporting frames.

imilar numerals of= reference are employed to indicate corresponding parts a thrbughout the several figures of drawlDgS The frameof' the pump-comprises a vertically arranged hollow standardl provided at its lower end with angularly bent arms 1 which are pivoted or otherwise secured to a suitable supporting frame.

The pump is arranged for attachment to a tank orother containing vessel, the cap or cover of such tank being indicated at B, and above this cap or cover is a frame A and below is a frame 0, the two frames bein of similar construction and preferably forihed of strap iron. t

The supporting frames each include a pair of parallel bars a a which. are connected toether by'an approximately U-shaped brace and at one side of the bar it is riveted a bar '0, the ends of which extend at'an'obtuse angle to each other, and are arranged to engage against the side walls ofthe tank. To the rear face of the bar a is secured a bracing bar (I which, also, extends outward into en age ment with the vertical walls of thetan or containing vessel. The arms 1 of the main standard or frame extend through the cover and are rigidly secured to both of the frames qc, and this forms "a solid, rigid connection which will hold the pump in place while in operation. i

Suspended within the tank or containin vessel is a cylinder 21- having upper an lower heads 30 and 29 which are'connected together by tie rods 22. In the lower head 29 is an inlet 26 closed by a valve 25 and working within the cylinder is a piston 23 that is carried by a piston rod 5, so that on the up stroke of the piston the valve 25 will be opened to permit the oil or other liquid to flow into the lower end of the cylinder. On the down stroke of the piston, the liquid is forced out through a discharge port 27 which.

is connected to a vertically arranged discharge pipe 32 by an'elbow 28, there being a suitable check valve 31 arrangedin the diswe charge pipe in order to prevent back flow into the cylinder.

The upper portion of the iston rod is mounted in suitable bearings ormed in the Y standard, and to the rodis secured a block 7 Wl'llCll may be adjusted with respect to the length of the rod in order to secure accurate operationl Projecting from this block is a pointer arranged to travel over a suitable scale marked on the vertical standard 1, the

scale being shown bearing litable numerals 1, 2, 3 4 and 5 which may be spaced in accordance with the cubic content of the pump cylinder for indicating gallons, quarts or other units of liquid measurement.

The upper portion of the casin or standard 1 is rounded to form a pair 0' housings, through one of which extends a shaft 2 carrying a handled crank 2. On this shaft is secured a sprocket wheel 3, over which passes a link belt 4, the belt passing also over an idler 20 near the lower )ortion of the casing. The handled crank orms the operating means, and by turning the crank first in one direction and then in the other, the piston may be raised to permit the filling of the cylinder to any desired extent, and then forced down for the purpose of discharginga por tion. or all of the contents of the cylinder as may be required, the extent of the movement and the quantity of liquid delivered being indicated on the scale.

In the second of the housings at the upper portion of the casing is mounted a shait '2 on which is secured a ratchet wheel 17, and with this ratchet wheel engages a pawl 14, said pawl having a stop shoulder 16 which is normally drawn into engagement with the upper wall of the casing by a retractile sprin 15, the shoulder projecting beyond the Wfifi of the casing for a purpose ereinafter described. At one end of the shaft is secured a pointer 18 which is arranged to move over a graduated scale 19, the number of graduations corresponding to the number of teeth of the ratchet wheel.

Each time the piston rod is elevated to its fullest extent, the block strikes against the shoulder 16 of the pawl, and raises the latter, so that the pawl may engage with a fresh tooth of the ratchet wheel, and then as the piston rod descends the block will leave the shoulder of the pawl, and the latter'will rotatc the ratchet wheel to the extent of a single tooth, this movement being indicated on the scale 19.

In order to accurately control the quantity of liquid delivered, a stop rod 6 is mounted in suitable bearings projecting from the casing, one of these bearings beingin the form of a disk 11, and the other in the form of a bracket 8. This rod is provided witha handled catch 12 which may be arranged to engage with a number of locking notches 18 formed at the top of the disk, and by turning the rod to a greater of less extent, one or other of a number of stop blocks 9--10 may be moved into the path of the block 7 an order to limit the extent of downward cylinder, and will be positively stopped when this quantity has been delivered. The

osition of the blocks may be such as to indicate either quarts, gallons or other units of liquid measurement.

At the delivery end of the ipe 32 is an elbow 33. The lower face of t 1.18 elbow has a horizontal flange or shoulder 36 and below this shoulder the outer wall of the nozzle is provided with an annular recess 35 over which is placed a tapered nozzle 34. This forms an air chamber which will prevent, or to a material extent reduce the loss of liquid by dripping.

I claim: j I

1. In a measuring pump, a pumping mechanism including a. iston rod, means for actuating the same, a lock secured to the piston rod and adjustable in the direction of the length of the rod, an adjustable stop for engaging said block, an indicating device including a ratchet wheel, a pointer carried 1 thereby, a graduated dial over which the pointer may 'travel, a awl engaging the ratchet wheel, said awl having a shoulder disposed in the pat of movemen' of the block, and means for retracting the pawl.

2. In .a measuring pump, a pumping mechanism including a iston rod, means for operating the rod, a b oc-k secured to the rod, an indicator with which the block engages, and an adjustable means for limiting the movement of the rod. during the discharging operation of the pum 3. A measuring ump including a piston rod, anindicating evioe, a block carried by the piston. rod, and operating said indicating device, and adjustable stops movable into the path of the block and serving to limit the discharging movement of the pump.

4. A measuring pump including a piston 'rod, means for operating the rod, a block projecting from said piston rod, a revolubly mounted stop rod iaving a plurality of blocks, any one of which may be adjusted in the path of movement of the piston rod block, a stop disk having a series of notches, and an o )erating handle carried by the stop rod and having a catch arranged to engage any one of" said notches.

5. A measuring pump including a piston rod, a block carried thereby and having a pointer, a graduated scale ovcrwhich the i ointer may travel, a link belt secured to the lilock, and means for actuating said link belt.

Substantially as herein set forth.

()IlAltl JCS S. J( N ES.

Witnesses:

ALFRED HENRY, W. M. AMsDEN. 

